diff options
Diffstat (limited to 'src/opengl/doc/snippets/code/src_gui_opengl_qopengldebug.cpp')
-rw-r--r-- | src/opengl/doc/snippets/code/src_gui_opengl_qopengldebug.cpp | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/opengl/doc/snippets/code/src_gui_opengl_qopengldebug.cpp b/src/opengl/doc/snippets/code/src_gui_opengl_qopengldebug.cpp new file mode 100644 index 0000000000..bb5c212205 --- /dev/null +++ b/src/opengl/doc/snippets/code/src_gui_opengl_qopengldebug.cpp @@ -0,0 +1,86 @@ +// Copyright (C) 2018 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause +#include <QOpenGLContext> +#include <QSurfaceFormat> +#include <QWidget> +#include <QtOpenGL/QOpenGLDebugLogger> + +namespace src_gui_opengl_qopengldebug { +struct LogHandler : public QObject +{ + Q_OBJECT +public slots: + static bool handleLoggedMessage() { return true; }; +}; +struct SnippetWrapper : public QObject +{ + Q_OBJECT + void wrapper1(LogHandler *receiver); + const QWidget *receiver; +}; + +void wrapper0() { + +//! [0] +GLenum error = GL_NO_ERROR; +do { + error = glGetError(); + if (error != GL_NO_ERROR) { + // handle the error + } +} while (error != GL_NO_ERROR); +//! [0] + + +//! [1] +QSurfaceFormat format; +// asks for a OpenGL 3.2 debug context using the Core profile +format.setMajorVersion(3); +format.setMinorVersion(2); +format.setProfile(QSurfaceFormat::CoreProfile); +format.setOption(QSurfaceFormat::DebugContext); + +QOpenGLContext *context = new QOpenGLContext; +context->setFormat(format); +context->create(); +//! [1] + +} // wrapper0 + + +void SnippetWrapper::wrapper1(LogHandler *receiver) { +//! [2] +QOpenGLContext *ctx = QOpenGLContext::currentContext(); +QOpenGLDebugLogger *logger = new QOpenGLDebugLogger(this); + +logger->initialize(); // initializes in the current context, i.e. ctx +//! [2] + + +//! [3] +ctx->hasExtension(QByteArrayLiteral("GL_KHR_debug")); +//! [3] + + +//! [4] +const QList<QOpenGLDebugMessage> messages = logger->loggedMessages(); +for (const QOpenGLDebugMessage &message : messages) + qDebug() << message; +//! [4] + + +//! [5] +connect(logger, &QOpenGLDebugLogger::messageLogged, receiver, &LogHandler::handleLoggedMessage); +logger->startLogging(); +//! [5] + + +//! [6] +QOpenGLDebugMessage message = + QOpenGLDebugMessage::createApplicationMessage(QStringLiteral("Custom message")); + +logger->logMessage(message); +//! [6] + +} // SnippetWrapper::wrapper1 +} // src_gui_opengl_qopengldebug |